Concrete and like buillding construction



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Patented July 5 1 76-5. "7 d: 5/7 lib/7405001 H. AND S. H. THOMPSON.

APPLICATION HLED APR.26,1921.

entrain stares rarest @FFHQE- HENRY THOMPSON AND STANLEY H. THOMPSON, OF MALVERN, MELBOURNE, VICTORIA, AUSTRALIA.

CONCRETE AND LIKE BUILDING CONSTRUCTION.

Specification of Letters Patent.

Patented July 5, 1921.

Application filed. April 26, 1921. Serial No. 464,681.

To all whom it may concern. 7

Be it known that we, HENRY THoMrsoN and STANLEY Horn THOMPSON, both subjects of the King of Great Britain and Ireland, and residents of the city of Malvern, a suburb of the city of Melbourne, in the county of Bourke, State of Victoria, Commonwealth of Australia, (whose post-oflice address is 52 Wheatland road, in the said city of Malvern), have invented certain new and useful. Improvements in Concrete and like Building Construction, for whlch we have filed an application in Australia, March 5, 1920, of which the following is a-specification.

This invention relates to the construction of walls and other parts of concrete and like buildings. Its object is to provide a cheap, simple and eflicient method of quickly erecting such structures from a series of standardized interlocking units, the slabs forming the inner and outer sections of a double wall being spaced apart and locked together by vertical locking bars of special shape whlch are adapted to slide into vertical fish-tail grooves on the slabs and bridge the air space between the inner and outer.wall sections. In combination with the foregoing the slabs 1 are provided at their ends with superimtion.

Fig. 4 shows in sectlonal plan detalls of posed horizontal dovetail tongues and grooves which are adapted to interlock with corresponding tongues and grooves on th'e ends of adjoining slabs thereby providing, in conjunction with the aforesaid looking bars, a combined lock which effectively secures the various parts together in their proper relative positions. The features of the invention will, however, be more fully set forth in the following description and defined in the appended claims. I Referring to the drawings which form part of this specification I j Figure 1 is a sectional plan of portion of a building showing right and left hand cor: ners and intermediate straight portions of an external wall in accordance with the invention.

Fig. 2 is a side elevation of F 1g. 1.

Fig. 3 is a sectional plan showing a corner and straight portions of an internal wall or partition and the junction thereof with an external wall in accordance with the inventhe wall construction to form reveals and jambs for door and window openings.

Fig. 5 is a perspective viewof a corner and straight portions of a wall constructed in accordance with the invention.

Fig. 6 is an elevation of the partsseen in Fig. 4.

In the drawings A indicates the concrete or like slabs which are thickened at one or both ends as shown to take half fish-tail grooves Y which extend vertically from top to bottom of the slab and are adapted to slidably receive appropriate shaped portions of vertical locking bars L. These locking bars are provided at each corner with longitudinal lips or flanges F which correspond to and engage within the grooves Y as shown. The inner or opposed-faces of said flanges are beveled or inclined as shown, the flanges thus greatly strengthening the locklng-bars in the direction of their transverse or lesser cross sectional dimension and enabling them to effectively withstand the stresses caused by long column bending action common to such structures.

In combination with the foregoing the slabs A are provided at their ends with horizontal dovetail tongues X and grooves Z which interengage with corresponding tongues and grooves on the endsof adjoining slabs, both at corners and junctions and in straight portions of walls as shown. When the tongues and grooves X, Z, are. engaged as aforesaid the half,fishtail grooves Y (which are offset sidewar'dly from the tongues and grooves X, Z as shown) are simultaneously brought into position to form full fish-tail grooves for the reception of the vertical locking bars L. These locking bars .are formed in sections which are slid down into the grooves Y, the upper and lower transverse air'passages P which connect the air spaces between the inner and outer slabs and form a continuous air passage around the wall.

T 0 form the reveals and jambs for door and window openings the horizontal tongues and grooves X, Z are omitted and the extremities of the slabs are returned at right angles for half the thickness of the slabs as at R in Figs. 4 and 6 thereby forming full fishtail grooves instead of half fishtail grooves to accommodate the vertical locking bars L. The full fish-tail grooves extend from top to bottom of the opening thus formed in the wall, the half fish-tail grooves and interlocking formation X, Z being continued beyond such opening as in Fig. 6.

By the provision of the combined lock afforded by the engagement of the parts L, Y and X, Z and the thickening of the slabs to take the grooves Y as above described great strength is imparted to the walls and a highly eflicient, simple and inexpensive construction is provided.

-Having now described our-invention what we claim as new and desire to secure by Letters Patent is 1. A building slab having at each end horizontally disposed dove-tail tongues and grooves adapted to interengage with corresponding tongues and grooves in the ends of adjoining slabs to lock the slabs together in a'longitudinal direction and a thickened portion projecting from one side of the slab adjacent its end or ends and forming a vertical half fish-tail groove which is offset sidewardly from the first named tongues and grooves, for the purpose specified.

'2. A building slab formed at each end with complementary interlocking edge portions, whereby it may interlock with the meeting ends of adjacent slabs, said slab being further formed on the inner surface adjacent the respective ends with thickened portions shaped to provide half dove-tail grooves.

3. A wall structure comprising an inner wall section and an outer wall section, each wall section being formed of a plurality of slabs arranged end to end, each end of each slab being formed with interlocking means cooperating to interlock the meeting ends of the slabs, the respective slabs being formed on their inner surfaces adjacent their ends to provide (lOX'G-tt'tll grooves, and locking bars engaging the dove-tail grooves of op-' posing wall sections, said bars being formed with openings therethrough.

4. A wall section made up of an inner and outer series of slabs, the slabs of one series being interlocked one with another at their meeting ends, and means for interlocking the slabs of the outer series with the slabs of the inner series in line with the meeting ends of said slabs, whereby the slabs are interlocked in all directions.

In testimony whereof we affix our signatures. I

H. THOMPSON. STANLEY H. THOMPSON.

lVitness FINLAY J. CROSBEY. 

